private void btnEdit_Click(object sender, EventArgs e)
{
EditPOItems();
frmPurchaseOrder PO_ = new frmPurchaseOrder(txtPoNo.Text);
PO_.RefreshGrid();
}
private void btnAdd_Click(object sender, EventArgs e)
{
if (isValidPoItem() == true)
{
AddPOItems();
frmPurchaseOrder PO_ = new frmPurchaseOrder(txtPoNo.Text);
PO_.RefreshGrid();
this.Close();
}
}